12245172456 has 64 divisors (see below), whose sum is σ = 33894420480. Its totient is φ = 3655270080.

The previous prime is 12245172419. The next prime is 12245172481. The reversal of 12245172456 is 65427154221.

12245172456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328456 + ... + 363831.

It is an arithmetic number, because the mean of its divisors is an integer number (529600320).

Almost surely, 2^12245172456 is an apocalyptic number.

It is an amenable number.

12245172456 is an abundant number, since it is smaller than the sum of its proper divisors (21649248024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12245172456 is a wasteful number, since it uses less digits than its factorization.

12245172456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692374 (or 692370 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The spelling of 12245172456 in words is "twelve billion, two hundred forty-five million, one hundred seventy-two thousand, four hundred fifty-six".